J-D,

I have 4 regions for this table all on the same server.

It looks like it may be related. I have started another test and will verify.

Is there a fix for this issue or should I create a intermediary table for now?

thanks,
Dru

On Aug 11, 2008, at 11:54 AM, Jean-Daniel Cryans wrote:

Dru,

Apart from doing a 'tail' on all your region server logs, watching your number of regions in the web UI. How many regions do you have currently in
your table?

J-D

On Mon, Aug 11, 2008 at 2:52 PM, Dru Jensen <[EMAIL PROTECTED]> wrote:

Hi J-D,

I am writing to the same table that I'm scanning, however I get this often
and would be surprised if its caused by a split.

How can I determine if a split is occurring?

thanks,
Dru


On Aug 11, 2008, at 11:35 AM, Jean-Daniel Cryans wrote:

Dru,

Can you tell me if your situation is the same on as in
https://issues.apache.org/jira/browse/HBASE-810

Thx,

J-D

On Mon, Aug 11, 2008 at 2:35 PM, Dru Jensen <[EMAIL PROTECTED]> wrote:

What causes the following error?  It's coming from the
TableInputFormatBase
class.  It seems to be fairly random for me.

From what I've read so far, its related to a timeout error? I verified
my
map task doesn't take long to process. Anything else that may cause
this?

org.apache.hadoop.hbase.UnknownScannerException:
org.apache.hadoop.hbase.UnknownScannerException: Name:
4797186499140551292
    at

org .apache .hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java: 1115)
    at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    at

sun .reflect .DelegatingMethodAccessorImpl .invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at
org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:473)
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:896)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
    at

sun .reflect .NativeConstructorAccessorImpl .newInstance(NativeConstructorAccessorImpl.java:39)
    at

sun .reflect .DelegatingConstructorAccessorImpl .newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java: 513)
    at

org .apache .hadoop .hbase .RemoteExceptionHandler .decodeRemoteException(RemoteExceptionHandler.java:82)
    at

org.apache.hadoop.hbase.client.HConnectionManager $TableServers.getRegionServerWithRetries(HConnectionManager.java: 885)
    at

org.apache.hadoop.hbase.client.HTable $ClientScanner.next(HTable.java:1321)
    at

org.apache.hadoop.hbase.mapred.TableInputFormatBase $TableRecordReader.next(TableInputFormatBase.java:202)
    at

org.apache.hadoop.hbase.mapred.TableInputFormatBase $TableRecordReader.next(TableInputFormatBase.java:84)
    at

org.apache.hadoop.mapred.MapTask $TrackedRecordReader.next(MapTask.java:158)
    at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:45)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219)
    at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java: 2124)




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